CONJUNCTIONS.
An interesting instance where the rapid connection of signs has the effect of the conjunction and is shown in Nátci's Narrative, infra.
PREPOSITIONS.
In the Tendoy-Huerito Dialogue (page [489]) the combination of gestures supplies the want of the proposition to.
PUNCTUATION.
While this is generally accompanied by facial expression, manner of action, or pause, instances have been noticed suggesting the device of interrogation points and periods.
Mark of interrogation.
The Shoshoni, Absaroka, Dakota, Comanche, and other Indians, when desiring to ask a question, precede the gestures constituting the information desired by a sign intended to attract attention and "asking for," viz., by holding the flat right hand, with the palm down, directed, to the individual interrogated, with or without lateral oscillating motion; the gestural sentence, when completed, being closed by the same sign and a look of inquiry. This recalls the Spanish use of the interrogation points before and after the question.
Period.
A Hidatsa, after concluding a short statement, indicated its conclusion by placing the inner edges of the clinched hands together before the breast, and passing them outward and downward to their respective sides in an emphatic manner, Fig. 334, page [528]. This sign is also used in other connections to express done.